Abstract
A solution-phase route was devised to synthesize crystal Ag nanowires with the micellar in-situ of Ag+. Ag nanocrystals were synthesized by using amphiphilic block copolymer polystyrene-block-poly (acrylic acid) (PS–b–PAA) based on the flexibility of the copolymer chains and the complex effect of –COOH in the poly acrylic acid with Ag+ ion and Ag under ultrasonic irradiation. The crystal morphologies were changing from rods to dendrite crystals. The resultant nanoproducts were characterized by transmission electron microscope (TEM), X-ray diffraction (XRD) and electron diffraction (ED). The results revealed that the size of the resulting Ag nanostructures prepared was strongly dependent on the initial concentration of the silver ion solution and the concentration of the copolymer. This work provides a simple route for the in situ synthesis of Ag nanostructures.
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